The effect of the mechanical alloying and nitriding time on the structure and properties of Sm-Fe-N alloys were studied in the course of the research. The influence of alloying elements (nitrogen, titanium, molybdenum) on the Curie temperature was investigated. It was revealed that the introduction of alloying elements leads to obtaining a homogeneous structure, an uniform distribution of particles, crystal lattice distortion and increasing the Curie temperature (up to 540-550 °C).